Mongodb contains field. The _id field is always the first field in the documents.


Mongodb contains field. html>mssjcog

Is this possible? I'm building a CRUD type interface that allows * for wildcards on the various fields. I am using Spring Mongo repository class and need to get all the records where the number field contains a specific number. firstName, lastName: body. Query operators allow you to perform mathematical or logical Apr 17, 2014 · How to check if an array field contains a unique value or another array in MongoDB? 83. For that you need the aggregation framework or mapReduce like you mention. Finding documents in a MongoDB database that contain an array with a specific value is a common task for developers. Apr 5, 2017 · Is it possible to query documents where a specific field is contained in a given string? for example if I have these documents: {a: 'test blabla'}, {a: 'test not'} I would like to find all documents that field a is fully included in the string "test blabla test", so only the first document would be returned. The following returns the same results as above: db. All documents have similar fields. The command sorts the documents in the result set by the name field and limits the result set to 5 documents. The following operation queries the inventory collection for documents Dec 8, 2009 · Every time the object is saved again, the lowercase properties are then checked and updated with any changes to the main properties. Apr 8, 2014 · Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. Mar 6, 2024 · Is it even possible, using HotChocolate, MongoDB. In this example, we will use regex in MongoDB to understand how we can query documents to check if a field contains a string. , contains only field and value pairs), the update inserts a new document with the fields and values of the replacement document. MongoDB Compass. It contains one index entry for each unique post-stemmed word in each indexed field for each document inserted. so the find bigger query only hits the database once returning a cursor so there is no worry about the performance also if you want the query not to hit the Starting in MongoDB 5. To specify the s or x options, you must use the options field. Sep 23, 2012 · I am new in MongoDB. In most cases data that has been stored using field names like these is not Apr 15, 2024 · In the NoSQL database, MongoDB is the most robust and flexible option for managing big data. THIS IS THE CORRECT QUERY: Sep 9, 2016 · For anyone new to MongoDB and isn't familiar with constructing MongoDB JSON query objects inside the find* methods, you can leverage the mongoose Query Builders. find( { item: null } ) Existence Check MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. Driver to apply a case insentive argument on the 'Contains' operation ? Custom String Filter (C#) : Implementation of a custom filter to override the contain operation, didn't work. The v field contains the value of the field in the original document. NET course (from Mongo itself). contains(user2) Edit: schema for example var userData = { firstName: body. So, MongoDB support different types, like int32, string, boolean AND objects ^^. For an ascending index on a field, specify a value of 1. Storage Requirements and Performance Costs Jan 31, 2022 · If you are supplied with data files which extend your existing documents by adding new fields, or update certain fields, you can use mongoimport with "merge mode". To build a regex query use the find filter Filters#regex method. The find() method always returns the _id field unless you specify _id: 0 to suppress the field. So for all other records there was no isDeleted field, so i wanted to get all the fields that isDeleted either does not exist or false. The following example selects all documents where the instock array has at least one embedded document that contains the field qty whose value is less than or equal . g { "firstName": "awais&hellip; Dec 16, 2020 · Mongodb: Query to see if a field contains an array. A document that contains the field and value pairs where the field is the index key and the value describes the type of index for that field. 2 and earlier, to change a shard key: Dec 13, 2020 · So you can create a new field which store the position where the index has been found. Sparse indexes only contain entries for documents that have the indexed field, even if the index field contains a null value. I am programming an application with spring data and mongodb and I have one class with two fields: firstname and lastname. Jul 5, 2024 · MongoDB Text Search. Dec 26, 2012 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Match criteria consist of the fields and values you want present in a document. 0 or false to exclude the field. MongoDB Community: The source available, free-to-use, and self-managed version of MongoDB. Syntax 1 or true to include the field in the return documents. You do not need to explicitly specify the multikey type. This will make it so you can search efficiently, but hide the extra work needed to update the lc fields each time. As an example let´s imagine we got a MongoDB collection of movies that has the following fields: title, plot, and director. password, email: body. MongoDb Query: checking if a string contains field value. How to check if a field in MongoDB Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jun 20, 2020 · With MongoDB Java driver use the find method - see MongoDB Java Find filter Examples. Indexes are special data structures that store a small portion of the collection's data set in an easy to traverse form. A compound query can specify conditions for more than one field in the collection's documents. How can I do it if I want to pass a variable to it, and not an actual string? Thanks. These indexes improve performance for queries on specific embedded fields that appear in arrays. Syntax { < Oct 16, 2020 · Since 2014, 3T has been helping thousands of MongoDB developers and administrators with their everyday jobs by providing the finest MongoDB tools on the market. If the specified <value> is an array, MongoDB matches documents where the <field> matches the array exactly or the <field> contains an element that matches the array exactly. A group key is often a field, or group of fields. For case sensitive regular expression queries, if an index exists for the field, then MongoDB matches the regular expression against the values in the index, which can be faster than a collection scan. To learn more about querying your data for deployments hosted in MongoDB Atlas, see Find Specific The query matches the document where the name field contains an embedded document with the field first with the value "Yukihiro" and a field last with the value "Matsumoto". MongoDB 检查字段是否包含字符串 在本文中,我们将介绍如何在 MongoDB 中检查一个字段是否包含一个字符串。MongoDB 是一个开源的文档型数据库,具有灵活的数据模型和强大的查询功能。在日常的开发工作中,我们经常需要查询包含特定字符串的文档。 Jan 25, 2019 · Query for all documents when any of the array element is found in a field in mongodb 1 how to filter the fields of a document within another document in mongodb? MongoDB cannot create a unique index on the specified index field(s) if the collection already contains data that would violate the unique constraint for the index. For example, give me all the records where 2 is present in the number field. If an appropriate index exists for a query, MongoDB can use the index to limit the number of documents it must inspect. In a query filter, you can match fields with literal values or with query operators. find( { producer: { company: 'ABC123', address: '123 Street' } }); May 23, 2016 · How can I match multiple words from it in MongoDB? When matching a single word I can do this; MongoDB: How to find out if an array field contains an element? 3. If a collection named foo contains an index { x: 1, y: MongoDB uses the slot-based execution query engine to Jul 22, 2021 · Hello, MongoDB newbie here. When you create an index on a field inside an array, MongoDB stores that index as a multikey index. If consistent sort order is desired, include at least one field in your sort that contains unique values. find({ title: /MongoDB/i }) The /MongoDB/i syntax represents a case-insensitive search for the MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. Second, I assume that x is an array in your example. For descending index, specify a value of -1. I have an array of numbers [1, 2, 3], and I want to query this collection to return all documents where the contents of the array field contain at least one (not necessarily all) of the elements of [1, 2, 3]. The autocomplete operator, which allows you to search the specified fields for a word or phrase that contains the sequence of characters that you specify with your query. Querying against any such documents would lead to arbitrary and inconsistent results. Sep 25, 2016 · Unfortunately this only gives back results which match the search_term variable's value exactly. If you have a class Post with an array of Tags, you can filter where Tag = ABC. collection. In MongoDB 4. I need to know all such collections where there is a field called " I am trying to find the correct combination of aggregation operators to add a field titled "totalCount" to my mongoDB view. The "price" field contains a document with two subfields, "usd" and "euro". The index is "sparse" because it does not include all documents of a collection. MongoDB Manual: code examples for query operations on array fields. Jan 22, 2014 · Pymongo: How to query MongoDB for existing and non-empty string field? 0 Is there a way to find record in mongo by matching field string with an array of values Dec 26, 2017 · Is there a way to check if a document field contains a string that is in the query? For example: MongoDB - find if a field value is contained in a given string. db. The command includes a projection to only return the following fields in the matching documents: _id, name, rating, and address fields. find({"shapes. MongoDB does not store documents in a collection in a particular order. To learn more, see Query for Null or Missing Fields with MongoDB Atlas. NOTE. The { item : null } query matches documents that either contain the item field whose value is null or that do not contain the item field. Creating an index on a field significantly improves performance for operations involving that field. The following aggregation operation looks at the in_stock array in each document and determines whether the string bananas is present. 0. For example, inserting a BSON document with duplicate field names through a MongoDB driver may result in the driver silently dropping the duplicate values prior to insertion, or may result in an invalid document being inserted that contains duplicate fields. lastName, username: body. . I just want to get a data, if datas have &quot;#l&quot; sting in the message field, I want it. , including the document whose field saffron contains a null value: { saffron: MongoDB 3. Retrieve documents with matching values on a given field in mongodb. If what you are actually asking is the "field count", where some "documents" contain array entries where that "field" may be present several times. ) and the name of the field in the nested document. Learn about the query and projection operators in MongoDB. When we perform a text search query always remember that our collection must contain a text index and a collection can only contain one text index but this single text index covers multiple fields. mongodb. The following find statement demonstrates how to achieve this: MongoDB automatically determines whether to create a multikey index if the indexed field contains an array value; you do not need to explicitly specify the multikey type. This is for use with a search feature. Syntax Oct 18, 2021 · Read: MongoDB find multiple conditions MongoDB find string contains a substring. Let’s build a MongoDB query using a regex for getting documents that Contain a String. test. If an existing or newly inserted document lacks a text index field (or the field is null or an empty array), MongoDB does not add a text index entry for the document. See Multikey Indexes and Multikey Index Bounds for more information on multikey indexes. 2 Update Multikey indexes collect and sort data from fields containing array values. READ MORE To perform text search on data hosted on MongoDB Atlas, use MongoDB Atlas Search. Check if an item exists in different fields. $': 1}); MongoDB 3. This is actually unexpected behavior, because you wouldn't be able to do the same for 0 (which is also false), so null is kind of the exception here. May 16, 2012 · You can use a wildcard text index if you want to search any string field, like this: db. Syntax You can create indexes on embedded document fields within arrays. For an example, see Equals an Array Value. createIndex() method. Oct 3, 2018 · Find MongoDB records where array field is not empty. The MongoDB Atlas UI. For instance, the query would match documents with name fields that held either of the following values: Database Deploy a multi-cloud database Search Deliver engaging search experiences Vector Search Design intelligent apps with gen AI Stream Processing Unify data in motion and data at rest The following command runs the find command filtering on the rating field and the cuisine field. Check if a field exists in all the elements of an array in MongoDB and I want to regex search an integer value in MongoDB. Dec 2, 2021 · MongoDb Query: checking if a string contains field value. Oct 31, 2021 · I will cover up a few different types of examples to support the different ways you can customize your string query with regex in MongoDB. Each element in the return array is a document that contains two fields k and v: The k field contains the field name in the original document. Match a Regular Expression Jan 29, 2014 · as for the looking i don't know a better way for the query to look better but as for the expense to the database all of this join/filter/union queries used inside the find are called Criteria and this criteria is lazy loaded. Atlas Documentation Get started using Atlas Server Documentation Learn to use MongoDB Start With Guides Get A valid expression that contains the field for which Jan 17, 2023 · The following tutorials explain how to perform other common operations in MongoDB: MongoDB: How to Query for “not null” in Specific Field MongoDB: How to Query with “Like” Regex MongoDB: How to Add a New Field in a Collection MongoDB: How to Remove a Field from Every Document MongoDB Contain a String- Approach 1. May 15, 2013 · Note: don't forget to create indexes for the fields that you will search through. _ If the _id contains subfields, the subfield names cannot begin Code language: CSS (css) If the field holds a single value, then the $in operator selects documents where the value of the field is equal to any value such as <value1 Alternatively, you can also specify the regex options with the options field. The contains operator is used with the `$` symbol, followed by the name of the field and the value to search for. Suppose you want to retrieve only those documents whose angle value is 300. MongoDB is a popular NoSQL database that stores data in JSON-like documents. 2 you can also do this using the $ projection operator, where the $ in a projection object field name represents the index of the field's first matching array element from the query. The phrase operator, which allows you to search the specified fields for documents that contain the terms in your query string at the distance you specify between the terms. I want to implement a single search function to find any document if any of the fields in that document matches the keyword. Check if all element in an array have the value for a certain field in Feb 3, 2024 · When frequently querying collections based on the existence of specific fields, consider leveraging indexes. MongoDB correctly handles polymorphism with arrays. Syntax Feb 9, 2015 · How can I find all the objects in a database with where a field of a object contains a substring? If the field is A in an object of a collection with a string value: I want to find all the objects in the db "database" where A contains a substring say "abc def". Jan 5, 2022 · This document contains two fields: the name of the coffee drink and a longer description which provides some background information about the drink and its ingredients. You may not specify a unique constraint on a hashed index . 0, you can reshard a collection by changing a document's shard key. Is it possible to find objects in a collection by a certain substring, if this substring may be contained in any field of this collection. How to retrieve the all documents of an array except one document which contains field of a particular value in MongoDB? 0. username, password: body. Indexing fields increases the speed of your regex queries. If the specified name already exists in the foreign document, the existing field is Dec 3, 2015 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. You cannot use "price. A query filter contains at least one set of match criteria to determine which documents to include in the resulting set. 1. Connect to a test database in your MongoDB instance then create the inventory collection: By default, MongoDB creates a unique index on the _id field during the creation of a collection. Run the MongoDB Apr 23, 2014 · I'm new to mongodb and mongoose and I'm trying to figure out how to do a query that let's me find all records/documents where a field contains a particular string. createIndex({ name: "text" }) MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. If the field contains an array of documents, you can use the $all with the $elemMatch operator. You cannot specify options in both the regex and the options field. Starting in MongoDB 4. The return array contains an element for each field/value pair in the original document. MongoDB Atlas: The fully managed The following query returns any restaurant whose grades. By utilizing these methods, users can efficiently and effectively search for documents based on specific string values within their database. Jan 30, 2019 · You can see a document field as an object field that can contains keys and values. Finding Documents with a Specific String with Regex in MongoDB. MongoDB supports several different index types, including: text Converts a document to an array. Jul 18, 2018 · but this returns documents that has both usernames (which won't work). For instance, the query would match documents with name fields that held either of the following values: Feb 24, 2016 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Starting in MongoDB 5. Syntax Contains links to MongoDB query and aggregation operators. Assume you have a collection named posts and you want to find all posts containing the word ‘MongoDB’ in their title field. SQL LIKE querys for MongoDB. Here is my Schema: const BookSchema = new Schema( { _id:Number, title:String, authors:[String Oct 21, 2010 · In 2. Like this: For case sensitive regular expression queries, if an index exists for the field, then MongoDB matches the regular expression against the values in the index, which can be faster than a collection scan. I have a collection with multiple documents in it. May 9, 2024 · 2. email } MongoDB supports field names that are dollar ($) prefixed or that contain periods (. MongoDB Enterprise: If the field contains an array of documents, MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. Query and Projection Operators Query operators provide ways to locate data within the database and projection operators modify how data is presented. MongoCollection. AnyEq(x => x. One of the major key in all the collections is "account". e. Atlas Search supports fine-grained text indexing and a rich query language for fast, relevant search results. If your input data is supplied with a stable identifier, use that field as the _id field, and supply the option --mode=merge. Syntax Also refer to want mongo query to do string regex start && contains && end since this is one of the worst things you can possibly do. Learn how to query an array and an array element or field, query on the array field as a whole, query if a field is in an array, and query by array size. Aug 17, 2022 · I have a problem that I can get a data from mongoDB but it's not what i want. grade field contains maxKey or is an array containing an element of the I have the following problem retrieving data from MongoDB using mongoose. ). The lower case fields could be a key:value object store or just the field name with a prefixed lc_. Syntax Apr 25, 2013 · Mongodb: Query to see if a field contains an array. When you create a text index, MongoDB ignores the sparse option. *'), not something that has "m" anchored to the beginning of the string. contains(user1) && username. When sorting on a field which contains duplicate values, documents containing those values may be returned in any order. This field stores values as an array to allow for mountains located in more than one country; ascents: this field’s value is another document. This makes it easy to store and query data with different structures. Jitendra_06416 (Jitendra Singh) February 1, 2019, 5:55pm Feb 15, 2021 · Hello I have a collection and in it there is a field with number datatype. Filter. In my case for my 'name' field it would be like this: db. MongoDB Enterprise: The subscription-based, self-managed version of MongoDB. Consider: Sep 14, 2021 · This document contains the following fields and values: name: the peak’s name; height: the peak’s elevation, in meters; location: the countries in which the mountain is located. You can query for null or missing fields in MongoDB using the following methods: Your programming language's driver. To create an index, use the db. Run the following insertMany() method in the MongoDB shell to create a collection named recipes and, at the same time, insert five sample documents into it: If no document matches the query criteria and the <update> parameter is a replacement document (i. euro" to identify and remove "euro" because MongoDB parses "price. color": "red"}, {_id: 0, 'shapes. The direction field, in turn, contains the angle field, which takes a numerical value. We guarantee the best compatibility with current and legacy releases of MongoDB, continue to deliver new features with every new software release, and provide high quality support. There are a variety of ways to conduct full-text searches. MongoDB: Query documents where For details on a specific operator, including syntax and examples, click on the link to the operator's reference page. For example, if I have a "users" collection, then I want to find all users whose firstname begins with, say, the string "Jo". reactivestreams. This tutorial will explore various scenarios, ranging from basic finds to more complex searches, to help you master querying documents based on the contents of an array field. So for Aug 11, 2016 · However, somebody reading the code might interpret it as the field has to be equal to null and not missing. May 24, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand MongoDB Query to Get Specific Fields. For example, if I have documents that have fields first_name, last_name, middle_name and I search for “John”, if any of the previously mentioned fields First, I highly recommend taking MongoDB University's . Equality Filter. The index skips over any document that is missing the indexed field. Atlas Documentation Get started using Atlas Server Documentation Learn to use MongoDB Start With Guides Get A valid expression that contains the field for which Apr 6, 2017 · The Query for Null or Missing Fields section of the MongoDB manual describes how to query for null and missing values. Implicitly, a logical AND conjunction connects the clauses of a compound query so that the query selects the documents in the collection that match all the conditions. 2. In my case, i added new field isDeleted : true to only fields that are deleted. createIndex( { "$**": "text" } ) A text index can be large. org Aug 3, 2015 · i found the way to check is the value contains in simple array : var filter = Builders<Post>. Find objects between two dates MongoDB. For instance, the query would match documents with name fields that held either of the following values: Feb 3, 2024 · One of the simpler ways to search for a string within a field in MongoDB is to use regular expressions (regex). MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. Jul 21, 2021 · I’ve many records in my database but some of them have a specific field and other don’t have, I want to fetch the records which contains that specific field, no matter the value of that field. MongoDB Text Search is to find the specified text from the string content. Nov 19, 2019 · You get the idea. If you do not know the index position of the document nested in the array, concatenate the name of the array field, with a dot (. For the _id field, you do not have to explicitly specify _id: 1 to return the _id field. Note: MongoDB uses regular expressions which are more powerful than "LIKE" in SQL. It's really thorough, and covers your question (and more) in depth. 690. MongoDB - find if a field value is contained in a given string. posts. Mar 4, 2022 · Scenario: I have a collection of documents in MongoDB, which have a field called "arrayField" that contains an array of numbers. Similarly, we can also find the document from the nested array that contains a particular value by explicitly specifying the nested array element. These are great for newcomers or to encourage consistent querying within your team. One common problem that occurs when working with MongoDB is to Update the MongoDB field using the value of another field and change data within our database. If the server receives a document that does not have the _id field first, then the server will move the field to the beginning. May 9, 2024 · In conclusion, MongoDB offers multiple methods to check if a field contains a specific string, we have looked at each of these methods with examples, advantages, and use cases. The examples on this page use the inventory collection. The code can be like this: If your regex pattern contains capture groups and the pattern finds a match in the input, the captures array in the results corresponds to the groups captured by the matching string. here's data on mongodb ( Jul 30, 2019 · Check if a string contains a sub-string in C++; Check if a String Contains a Substring in Linux; How do I check whether a field contains null value in MongoDB? Check if a string contains numbers in MySQL? Check if value exists for a field in a MongoDB document? Check if a string contains a number using Java. MongoDB provides the capability to create indexes that specifically target field existence, enhancing query execution speed and efficiency. I want it to give back any results where the title contains the search term - regardless what other strings it contains. In this topic, we will learn to find the documents of the collection where the field contains a substring of a string. MongoDB: Find an element in an array. Author names where the name contains a word like “John” or “john” for the Author field value. See full list on statology. euro" as a top level field name that happens to contain a period (. 2 and earlier, the choice of shard key cannot be changed after sharding. Learn more Explore Teams This page provides examples of query operations on embedded/nested documents using the com. I need one query for documents that contain one string in the full name (firstname + lastname). The _id field is always the first field in the documents. MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB. Types of full-text search. find method in the MongoDB Java Reactive Streams Driver. In this tutorial, you'll learn how to use the MongoDB $exists operator to match documents that contain a field. Now let´s see how we can achieve the same with MongoDB. Oct 19, 2011 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand The new array field contains the matching documents from the foreign collection. 562. Jul 15, 2016 · How to find MongoDB field name at arbitrary depth (2 answers) Closed 7 years ago . Jan 22, 2024 · One of the fields in the embedded document is direction, also an embedded document. inventory. With regular expressions you can create any pattern that you imagine. 4, you can refine a shard key by adding a suffix field or fields to the existing shard key. Apr 8, 2016 · There is more than 40 collections in database I am currently working on. Apr 15, 2020 · I know how to query for arrays that have a number of items, and query for documents that have a field that has some specific sub-field, but I'm looking for a document that has a field that has any sub-fields. 2 Update. I'm trying to keep the UI consistent for a few fields that are integers. 3. I'm thinking of something like username. A text index will take longer to build than a normal index. All query forms will not be able to use an index All query forms will not be able to use an index MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. The query matches the document where the name field contains an embedded document with the field first with the value "Yukihiro" and a field last with the value "Matsumoto". 2 and earlier, to change a shard key: The query matches the document where the name field contains an embedded document with the field first with the value "Yukihiro" and a field last with the value "Matsumoto". In this article, we will learn about How to Update the MongoDB field using the value of another fie MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. These query selectors, projection operators, and miscellaneous operators help with advanced querying and projection. Feb 3, 2024 · Introduction. Find a Document from Nested Array. The index stores the value of a specific field or set of fields, ordered by the value of the field. An asterisk (*) is not a valid index name. Your operation I have such fields in entity: private String userId; private String username; private Date created; private List<Comment> comments = new ArrayList<>;(); Comment have such fields : pri Dec 26, 2023 · The contains operator in MongoDB Compass is a MongoDB query operator that allows you to find documents that contain a specified substring or regular expression in a specified field. e. When you create an index on a field that contains an array value, MongoDB automatically sets that index to be a multikey index. Multikey indexes improve performance for queries on array fields. Text indexes should be either a string or an array of string elements. Each type has its own advantages and, much like the tools in a toolbox, is designed to address specific needs. client. Apr 16, 2016 · If you intended to count field occurences. The order of the elements matters. This will get me the count at this particular stage of the aggregation pipeline and output this as the result of a count on each of the documents: In the following example, the query matches all documents where the value of the field producer is a subdocument that contains only the field company with the value 'ABC123' and the field address with the value '123 Street', in the exact order: db. In MongoDB we can query string fields quite easily using regular expressions. MongoDB: How to find out if an array field contains an MongoDB Manual: code examples for query operations on array fields. Tags, "mongodb"); But how to find a complex item with many fields by a concrete field ? I found the way to write it via the dot notation approach with BsonDocument builder, but how can i do it with typed lambda notations ? upd Jul 22, 2010 · You're looking for something that contains "m" somewhere (SQL's '%' operator is equivalent to regular expressions' '. For example: firstname = "Hansen David", lastname = "Gonzalez Sastoque" and I have a query to find David Dec 27, 2013 · Find documents with arrays not containing a document with a particular field value in MongoDB 31 Find documents with array that doesn't contains a specific value Sadly, none of the previous answers address the fact that mongo can contain nested values in arrays or nested objects. nbdyjeq tkdrrh zqjcg woggu fwem aeksq mssjcog waumf odpats iys